机能的

Drills are among the basic tools of industry, building, and manufacturing. Dudley tells time by the television programs he is missing while hiding away from Harry's letters from Hogwarts on the rock and whines that his father wouldn't let him bring the television, his video games, and computer with him in his duffle bag.

钻孔机是工业制造，建筑业，制造业的一项基本工具，当为了躲避哈利从霍格沃茨的信而住在岩石上的时候达利不停的报时说他在错过什么电视节目，并且哭着抱怨他的父亲不让他在他的行李袋里装上他的电视，录象机和电脑。

As the above-mentioned factors, electric arc furnace steel-making enterprises will need to meet the operating rate of about 60%.

视上述因素而定，电弧炉炼钢企业的开工率则需要达到约60%。